Forces unit test

Question 1

equations containing mew

Answer 1

mew =Ff/Fn, Ff=mewFn

Question 2

equations containing g

Answer 2

fn= fg, fg=mg

Question 3

how to find fax

Answer 3

fa COS theta

Question 4

how to find fay

Answer 4

fa SIN theta

Question 5

most important equations

Answer 5

f=ma, fnet= fa-ff (fa-ff=ma)

Question 6

newtons 1t law

Answer 6

inertia, objects resist a change in motion. (object will continue at a stat of rest or at a constant speed in a straight line unless acted upon by an external force)

Question 7

newtons 2nd law

Answer 7

if the external force is not zero, the object will accelerate in the direction of the net force. magnitude is directly proportional to the net force and slightly proportional to the mass.

Question 8

what is a newton?

Answer 8

a unit that quantifies forces

Question 9

newtons 3rd law

Answer 9

for eery action force, there is a simultanious reaction force (boat question)

Question 10

questions to ask when creating a FBD

Answer 10

is there graavity? (Fg)
is it sitting on a surface? (Fn)
is something pushing or pulling on it (Fa, Ft)
is there friction? (Ff)

Question 11

what is friction

Answer 11

a force between two surfaces that oppose direction

Question 12

well thats it. ur gonna have to make up everything else

Answer 12

good luck?!